Mercurial > hg > truffle
changeset 5182:70aaaa83b93a
fixed gcc warning; added note to README_GRAAL about disabling the bootstrap step
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Mon, 02 Apr 2012 12:19:18 +0200 |
| parents | b97ef124c3ea |
| children | e1e681a5558e db2286df9149 |
| files | README_GRAAL.txt src/os_cpu/linux_x86/vm/os_linux_x86.cpp |
| diffstat | 2 files changed, 17 insertions(+), 4 deletions(-) [+] |
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--- a/README_GRAAL.txt Mon Apr 02 11:39:32 2012 +0200 +++ b/README_GRAAL.txt Mon Apr 02 12:19:18 2012 +0200 @@ -1,3 +1,5 @@ +Building Graal +-------------- There is a Python script in graal/mxtool/mx.py that simplifies working with the code base. It requires Python 2.7. While you can run this script by using an absolute path, it's more convenient to add graal/mxtool to your PATH environment variable so that the @@ -15,10 +17,21 @@ mx build debug mx build fastdebug -To run one of the correspong VM instances: +Running Graal +------------- + +To run the VM, use 'mx vm' in place of the standard 'java' command: - mx --product vm ... + mx vm ... + +To select the fastdebug or debug versions of the VM: + mx --fastdebug vm ... mx --debug vm ... -The default is --product. \ No newline at end of file +Graal has an optional bootstrap step where it compiles itself before +compiling any application code. This bootstrap step currently takes about 7 seconds +on a fast x64 machine. It's useful to disable this bootstrap step when running small +programs with the -XX:-BootstrapGraal options. For example: + + mx vm -XX:-BootstrapGraal ...
--- a/src/os_cpu/linux_x86/vm/os_linux_x86.cpp Mon Apr 02 11:39:32 2012 +0200 +++ b/src/os_cpu/linux_x86/vm/os_linux_x86.cpp Mon Apr 02 12:19:18 2012 +0200 @@ -313,7 +313,7 @@ if (thread->thread_state() == _thread_in_Java) { // Throw a stack overflow exception. Guard pages will be reenabled // while unwinding the stack. - if (WizardMode) tty->print("implicit: %08x%08x\n", ((long)pc) >> 32, pc); + if (WizardMode) tty->print("implicit: %08x%08x\n", ((long long)pc) >> 32, pc); stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW); } else { // Thread was in the vm or native code. Return and try to finish.